FAQs about Adjusting Voltage with Phase Converters and Transformers
Below are some of the most common questions North America Phase Converters receive about how phase converters work together with transformers.
Does a rotary phase converter change voltage?
No, a phase converter changes single-phase power to 3-phase power. A phase converter generates a third line of power from your input voltage. Therefore, your output voltage is the same as the input voltage.
Can I use a transformer with my phase converter?
Yes, a transformer can be used before or after a phase converter. However, it is preferred to use the transformer after the phase converter. When using a transformer after the phase converter, you will need a disconnect between the phase converter and the transformer. This can be done with either a disconnected switch or a contactor (time delay). At North America Phase Converters, we provide both options and will assist you with finding the best disconnect option based on your needs and phase converter application.
Can a transformer be used with all types of phase converters?
No, transformers only work with digital and rotary phase converters. They cannot be used in conjunction with a static phase converter.
What type of transformer will I need?
In most cases, an auto or isolation distribution transformer can be used on the output of the phase converter to step up or down the voltage. In some cases, a Buck-Boost transformer can be used on the input of the phase converter for small voltage adjustments.
Can I get 208, 400, or 480 volts from my phase converter if I have 240-volt single-phase power?
In short, the answer is yes. However, you will need a transformer to do so, which can be purchased through North America Phase Converters. Voltage can be stepped up or stepped down with a transformer; in some cases, a transformer can even be used before the phase converter to change/adjust the voltage.
Will a transformer change single-phase power to 3-phase power
No, a transformer can only change/adjust voltages, not phases. A phase converter is needed to change the phases.
